Also of Interest

Test your
knowledge

Walking is a well-balanced form of exercise for most people, regardless of age. Many people are able to maintain a modest level of fitness through a regular walking program. Walking is relatively easy on the joints. When walking, which of the following can strain joints?

Merck and the Merck Manuals

Merck & Co., Inc., Kenilworth, NJ, USA is a global healthcare leader working to help the world be well. From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world. The Merck Manual was first published in 1899 as a service to the community. The legacy of this great resource continues as the Merck Manual in the US and Canada and the MSD Manual outside of North America. Learn more about our commitment to Global Medical Knowledge.